Question: Who is the {G-type main-sequence star} for {child astronomical body} of {Pluto}
Paraphrase: Who is the {human} for {creator} of {Star Trek}
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P398 wd:Q339 . ?sbj wdt:P31 wd:Q5864 } 
Answer: Sun